24.3.194 I3C Target Characteristic Register for Virtual Target 4
| Name: | I3CxVIRTGT4CHARCON |
| Offset: | 0x7A956C |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| VT4HDR[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| VT4DCR[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| VT4DEVROLE[1:0] | VT4HDRCAP | VT4BRIDGEID | VT4OFFLINECAP | VT4IBIPAYLD | VT4IBIREQCAP | VT4MAXDATSPDLIM | |||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | |
Bits 23:16 – VT4HDR[7:0] I3C Device HDR Capability Register Value bits
Bits 15:8 – VT4DCR[7:0] I3C Device Characteristic Value bits
Bits 7:6 – VT4DEVROLE[1:0] Device Role Field in Bus Characteristic Register (BCR[7:6]) bits
Bit 5 – VT4HDRCAP SDR Only or SDR and HDR Capable Field in Bus Characteristic Register (BCR[5]) bit
| Value | Description |
|---|---|
| 1 | HDR DDR capable. |
| 0 | SDR capable. |
Bit 4 – VT4BRIDGEID Bridge Identifier Field in Bus Characteristic Register (BCR[4]) bit
| Value | Description |
|---|---|
| 1 | Virtual Target, or exposes other downstream device(s). |
| 0 | Not a Virtual Target and does not expose other downstream devices. |
Bit 3 – VT4OFFLINECAP Offline Capable Field in Bus Characteristic Register (BCR[3]) bit
| Value | Description |
|---|---|
| 1 | Target will not always respond to I3C Bus commands. |
| 0 | Target will always respond to I3C Bus commands. |
Bit 2 – VT4IBIPAYLD IBI Payload field in Bus Characteristic Register (BCR[2]) bit
| Value | Description |
|---|---|
| 1 | One data byte (MDB) shall follow the accepted IBI, and additional data bytes may follow. |
| 0 | No data bytes follow the accepted IBI. |
Bit 1 – VT4IBIREQCAP IBI Request Capable Field in Bus Characteristic Register (BCR[1]) bit
| Value | Description |
|---|---|
| 1 | Capable. |
| 0 | Not capable. |
Bit 0 – VT4MAXDATSPDLIM Max Data Speed Limitation Field in Bus Characteristic Register (BCR[0]) bit
| Value | Description |
|---|---|
| 1 | Target returns the data in the I3CxCLTDATSPD and I3CxCLTIBIPYLD registers in response to the GETMXDS CCC sent by the Controller. |
| 0 | Target NACKs the GETMXDS CCC sent by Controller. |